I know nothing about wool, so this is probably a really "duh" question, but here it goes....

Is all wool created equal? Or are some more "absorbant" than others? I'm looking for a bullet-proof nighttime solution for my extremely heavy wetter. Still havn't found any pocket/insert combos to work so I'm moving to wool, possibly. Thanks!

#1 no not all wool is created equal, some are softer, thicker, etc.
#2 Wool isn't "absorbent" it is a cover that goes over a fitted. Each soaker is only as good as the fitted under it. You should lanolize the wool and that helps it become more waterproof/resistant

#3 Bullet proof yarns in my experience are - Targhee, peregrine merino(which you can get at three irish girls) those are by far the BEST for nighttime in my research. I have heard peace fleece is good for nighttime but I HATE peace fleece it starts off kinda not so soft and I don't like yarns that I have to work with to make soft LOL. BUT peace fleece is cheaper. So really you do get what you pay for.

I suggest bedbugs from holden's landing or lullaby dreams those are fantastic. ALSO i've heard great things about fluffymail nightlites.

I just knitted (my first knitting project ever, well, and my mom's tiny dog's coat) a cover out of some merino I got from Michael's and some thick/thin wool yarn for trim that I got from Ben Franklin's. Its a lot more capable of keeping our bed dry than anything else we've done so far...and with less stuffing. So I'm sure there is something that would block *all* wetness.

I agree with the pp. Wool can vary extremely one from another. If you have an extreme heavy wetter, I recommend Aristocrats, Lana, or felted recycled wools. As for knitted, peace fleece works great (but it is not quite as soft) or a good tight crocheted wool works wonderfully. Some interlock will work great, but interlock can also vary greatly in thickness.